package com.example.demo.customer;

import com.example.demo.exception.NotFoundException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Objects;
import org.slf4j.LoggerFactory;

@Service
public class CustomerService {
    private final static Logger LOGGER = LoggerFactory.getLogger(CustomerService.class);
    private final CustomerRepository customerRepository;

    @Autowired
    public CustomerService(CustomerRepository  customerRepository){
        this.customerRepository = customerRepository;
    }

    List<Customer> getCustomers(){
        LOGGER.info("getCustomers called");
        return customerRepository.findAll();}

    Customer getCustomer(Long id){
            return customerRepository
                   .findById(id)
                    .orElseThrow(() ->{
                        NotFoundException notFoundException=new NotFoundException("customer"+id+ "无法找到");
                        LOGGER.error("error:getCustomer {}" +id ,notFoundException);
                        return notFoundException;
                    });


    }

}